Variable displacement Brueninghaus Hydromatik Rexroth A4VSG pump A4VSG71, A4VSG125, A4VSG180, A4VSG250, A4VSG355, A4VSG500, A4VSG750, A4VSG1000

Axial piston, swash plate design, variable displacement pump model A4VSG is designed 
for hydrostatic transmissions in closed circuit.
Flow is proportional to input speed and displacement, and is infinitely variable by adjustment of the swash plate.
Nominal pressure 5100 psi (350 bar). Peak pressure 5800 psi (400 bar)

  Figure :

– slot-controlled swashplate design – infinitely variable adjustment of displacement – reversible flow – permissible nominal pressure 350 bar – low noise level – long service life – drive shaft capable of absorbing axial and radial loads – operation on HF fluids possible with reduced operating parameters

– high power/weight ratio – modular design – short control times – through drive and tandem pumps possible – pump swivel angle indicator –installation position optional –Interchangeable with original Rexroth pump of same model of the Rexroth A4VSG variable piston pumps.

Ordering code:

	A	A4VS	G	250	DR	/	30	--	R	P	P	B	10
1	2	3	4	5	6		7		8	9	10	11	12	13	14	15

More explanation:
1 Fluid: Blank= Petroleum oils
               E= HF-Fluids (except Skydrol)
2 Version: A = SAE version
                   Blank= Metric version
3 Axial piston unit: Variable pump, swashplate design, industrial applications.
4 Operation model: Pump, closed circuit
5 Size: displacement 40, 71, 125, 180, 250, 355, 500, 750, 1000 (cm3/rev.)
6 Control device: DR=Constant pressure control
                               LR=Const. Power control with hyperbolic curve
                               MA=Manual control
                               EO=Hydraulic control, with proportional valve
                               HD=Hydraulic control, pilot pressure dependent
7 Series: 10, 22, 30
8 Direction of rotation: R= right. L= left (Viewed on shaft end)
9 Seals: P= NBR (Nitrile rubber to DIN ISO 1629) with shaft seal FPM
                V= FPM (Fluoride rubber to DIN ISO 1629)
10 Shaft end: P= Metric Parallel with key to DIN 6885
                         Z= Metric splined shaft per DIN 5480
11 Mounting flange:    B= ISO 4-bolt
12 Port connections: 10=Port A,B: SAE on the side (same side), metric mounting threads
13 Through drive: N00= Without auxiliary pump, without through drive
                                 K31= ISO 125, 4-hole, Splined shaft 32x2x30x14x9g, A4VSO/H/G 40
                                 K33= ISO 140, 4-hole, Splined shaft 40x2x30x18x9g, A4VSO/H/G 71
                                 K34= ISO 160, 4-hole, Splined shaft 50x2x30x24x9g, A4VSO/H/G 125
                                 K34= ISO 160, 4-hole, Splined shaft 50x2x30x24x9g, A4VSO/G 180
                                 K35= ISO 224, 4-hole Splined shaft 60x2x30x28x9g, A4VSO/H/G 250
                                 K99= With through drive, without hub or intermediate flange, with cover closed
14 Valves: 0= Without valve block
                   9= Valve block SDVB mounted
15 Filtration: N= Without filter
                        F= Filter in boost circuit, mounted

Nominal size				A4VSG71	A4VSG125	A4VSG180	A4VSG250	A4VSG355	A4VSG500	A4VSG750	A4VSG1000
Nominal pressure		p N	bar	350	350	350	350	350	350	350	350
Maximum pressure		p max	bar	400	400	400	400	400	400	400	400
Displacement		Vg max	cm³	71	125	180	250	355	500	750	1000
Speed1)		n max	rpm	3200	2600	2400	2200	2000	1800	1600	1600
Flow	at n max	q V max	l/min	227	325	432	550	710	900	1200	1600
Power	Δ p = 350 bar	Pmax	kW	132	190	252	321	414	525	700	933
Torque	Δ p = 350 bar	T max	Nm	395	696	1002	1391	1976	2783	4174	5565
Weight (approx.)		m	kg	60	107	112	220	235	335	500	644

Hydraulic Fluid
The A4VSG pumps in the standard design, should be used with good quality, petroleum oil based, anti-wear hydraulic fluids. More detailed information regarding the selection of hydraulic fluids and their application limits can be found in our Data Sheets RA 90 220 (Petroleum Oil), RA 90 221 (Biodegradable Fluids) and RA 90 223 (Type HF–Fire Resistant/Synthetic Fluids).When  operating  with  environmentally compatible fluids (Bio- degradable) or Fire Resistant (Type HF synthetic fluids) possible reduction of the operating specifications may be required. Please consult with us and your fluid supplier.
Bearing flushing
For a reliable continuous operation bearing flushing is required with the following operating conditions:
–  Applications with special fluids (non mineral) due to limited lubricity and narrow temperature range
–  operation with mineral oils, however with marginal conditions for temperature and viscosity
–  with vertical mounting (shaft up). In order to ensure lubrication of front bearing and shaft seal, we recommend bearing flushing.
The bearing flushing port "U" is located in the mounting flange area of the pump. The flushing oil flows through the pump's front bearing and leaves via the case drain.

Notes on Hydraulic Fluid Selection
In order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuits) in relation to the ambient temperature.
The hydraulic fluid should be selected so that, within the operating temperature range, the fluid viscosity is within the optimum range íopt (see shaded area of the selection diagram). We recommend
that the higher viscosity grade is selected in each case.
Example: At an ambient temperature of X°, the operating temperature in the reservoir is 140 °F (60 °C). In the optimum operating viscosity range opt, (shaded area), this corresponds to viscosity grades VG 46 or VG 68, VG 68 should be selected.
Important: The leakage fluid (case drain fluid) temperature is influenced by pressure and speed and is typically higher than the tank temperature. However, maximum temperature at any point in the system must be less than 195°F (90°C).
Installation notes
Optional installation position. The pump housing must be filled with fluid during commissioning and stay full when operating. In order to obtain the lowest noise level, all connections (suction, pressure, case drain ports) must be linked by flexible couplings to tank.Avoid placing a check valve in the case drain line. This may be permissible in individual cases, but only after consultation with us.

Details model of Rexroth A4VSG pump
A4VSG71HD3D/11R-PPB10N00	A4VSG500HD1G/30R-PZH10K079N
A4VSG125DP/30R-PPB10N00	A4VSG500HD1GT/30R-PPH10K439
A4VSG180HD1DT/30R-PPB10H009	A4VSG71HD3D/11R-PPB10N000NE
A4VSG180EM/10R-PPB10N00	AA4VSG180EO2/30R-PPB13N00
A4VSG250HD3A/30R-PPB10N00	AA4VSG125EO2/30R-PPB13N00
A4VSG355HW/30R-PPB10K520NE	AA4VSG355DRG/30R-PPB13N00
A4VSG500HD1G/30R-PZH10K079	AA4VSG355EO2/30R-PPB25N00
A4VSG750HD/22R-PPH10K99	AA4VSG180MA/30R-PPB13N00
A4VSG1000HD1G/30R-PZH10K72	AA4VSG355HD1/30R-PPB13N00
A4VSG125DP/30R-PPB10N000N	AA4VSG125DR/30L-PPB13N00
A4VSG125EO2/30R-PKD60K020NE	AA4VSG180DR/30R-VPB13N00
A4VSG125HD1/30R-PSD60N000N	AA4VSG125LR2/30R-PPB13N00
A4VSG125HD1D/30R-PKD60N009N	AA4VSG180DRG/30R-PPB13N00
A4VSG125HD1D/30R-VKD60K020NE	AA4VSG125DRG/30R-PPB13K33
A4VSG125HD1DT/30R-PSD60N009N	A4VSG180LR2/30R-PPB13N00
A4VSG125HS/30W-PKD60K020N	A4VSG125LR2N/30R-PPB13N00
A4VSG180EO2/30R-PKD60K020NE	A4VSG180DR/30R-PPB13N00
A4VSG180EO2K/30R-PZB10K279NE	A4VSG180DFR/30R-PPB13N00
A4VSG180HD1DT/30R-PKD60H009F	A4VSG250DFR/30R-PPB13N00
A4VSG180HD1T/30R-PPB10K680N	A4VSG250LR2/30R-PPB13N00
A4VSG180HD3D/30R-PZB10N000NE	A4VSG250LR2N/30R-PPB13N00
A4VSG250DRG/30R-PKD60K080N	A4VSG250DRG/30R-PPB13N00
A4VSG250DS1/30W-PSD60T990N	A4VSG250DR/30R-PPB13N00
A4VSG250HD1A/30R-VZB10K680N	A4VSG71LR2/10R-PPB13N00
A4VSG250HD1D/30R-PKD60N000	A4VSG125DFR/30R-PPB13N00
A4VSG250HD1D/30R-PSD60N000	A4VSG125LR2/30R-PPB13N00
A4VSG250HD1P/30R-PPB10G300	A4VSG180DRG/30R-PPB13N00
A4VSG250HD3D/30R-PPB10N00	A4VSG125LR2/30R-PPB13N00
A4VSG250HS/30R-PKD60H029F	A4VSG125DP/30R-PPB13N00
A4VSG250HSE/30R-PPB10N00	A4VSG125DFR/30R-PPB13N00
A4VSG355HD1BU/30R-VKD60H069	A4VSG355HD1/30R-PPB13N00
A4VSG355HD1DU/30R-PKD60K249N	A4VSG355LR3N/30R-PPB25N00
A4VSG355HW/30R-PKD60N00	A4VSG500LR3N/30R-PPH25N00
A4VSG355HW/30R-PPB10K520	A4VSG750LR3N/30R-PZH25N00
A4VSG500DS1/22W-PPH10N00	AA4VSG355EO2/30R-PKD63K52
A4VSG500DS1/30W-PPH10K430	A4VSG500DR/30R-PPH25N00
A4VSG500HD1/30R-PPH10N00	A4VSG750HS3/30R-PZH25N00
A4VSG500HD1DT/30L-PPH10K049N	A4VSG1000HS3/30R-PZH25N00
A4VSG500HD1G/30R-PZH10K029N	A4VSG40LR2/10R-PPB13N00
A4VSG500HD1GT/30R-PPH10K439N	A4VSG71LR2/10R-PPB13N00
A4VSG125EO2/30R-PKD60K020N	A4VSG71LR2G/10R-PPB13N00
A4VSG125EO2/30R-PKD60K039N	A4VSG40LR2G/10R-PPB13N00
A4VSG125HD1D/30R-PKD60N0	A4VSG250DR/30R-PPB13N00
A4VSG125HD1D/30R-PSD60K240N	A4VSG250DP/30R-PPB13N00
A4VSG125HD1DT/30R-PKD60K049F	A4VSG250DRG/30R-PPB13N00
A4VSG125HD3D/30R-PPB10N00	A4VSG250LR2G/30R-PPB13N00
A4VSG125HSE/30R-PKD60K030N	A4VSG250LR2N/30R-PPB13N00
A4VSG180EO2/30R-PPB10K029N	A4VSG250HS3/30R-PPB13N00
A4VSG180HD1A/30R-PSD60K240N	A4VSG250LR2/30R-PPB13N00
A4VSG180HD1DT/30R-PPB10H009F	A4VSG250DFR/30R-PPB13N00
A4VSG180HD3D/30R-PPB10N00	A4VSG1000LR3N/30R-PZH25N00
A4VSG180HW/30R-PPB10K020N	A4VSG125DR/30R-PPB13N00
A4VSG250DS1/30W-PSD60T000	A4VSG250LR3N/30R-PPB25N00
A4VSG250HD1A/30R-VZB10K350N	A4VSG180DFR/30R-PPB13N00
A4VSG250HD1D/30R-PKD60H009F	A4VSG125DRG/30R-PPB13N00
A4VSG250HD1D/30R-PKD60N00	A4VSG500HS3/30R-PPH25N00
A4VSG250HD1DU/30R-PKD60K049N	A4VSG355HS3/30R-PPB13N00
A4VSG250HD3A/30R-PPB10N00	A4VSG180DR/30R-PPB13N00
A4VSG250HD3D/30R-PPB10K349	A4VSG125DR/30R-VPB13N00
A4VSG250HM1/30L-PKD60N00	A4VSG125LR2N/30R-PPB13N00
A4VSG250HS/30R-PKD60H029FES1430	A4VSG125LR2G/30R-PPB13N00
A4VSG355DS1/30L-PZB10T000NE	A4VSG125LR2D/30R-PPB13N00
A4VSG355HD3D/30R-PZB10K840N	A4VSG180LR2G/30R-PPB13N00
A4VSG355HW/30R-PPB10K020NE	A4VSG180LR2/30R-PPB13N00
A4VSG500DS1/30W-PPH10K180NE	A4VSG180LR2N/30R-PPB13N00
A4VSG500DS1/30W-PZH10T990N-	A4VSG180DR/30R-PPB13N00
A4VSG500HD1DT/22R-PPH10H009N	A4VSG250HD1BT/30R-PKD63K22
A4VSG500HD1DT/30R-PPH10K049N	A4VSG250DRG/30R-PKD63K22
A4VSG250LR2G/30R-PKD63N00	A4VSG250LR2G/30R-PKD63N00